[Feature] Generate cmdlet to Add/remove elements for a complex array parameter

Following is a valid user case from the user side.

Let's say we have the cmdlet as below.

```
New-AzResourceA [-network ] -Name ...
```

Users may need to update the network configuration for ResoureA by adding/removing elements.

So it is better We could generate two cmdlets like add-AzResourceANetwork, remove-AzResourceANetwork to support this scenario.